/* ═══════════════════════════════════════════
   VISION AI PRICING PAGE
   Professional design matching homepage
   ═══════════════════════════════════════════ */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --primary: #667eea;
  --primary-dark: #5568d3;
  --gold: #fbbf24;
  --gold-dark: #f59e0b;
  --success: #22c55e;
  --bg: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-card: #ffffff;
  --text-primary: #1a1a2e;
  --text-secondary: #374151;
  --text-muted: #64748b;
  --border: #e5e7eb;
  --border-bright: #cbd5e1;
}

body {
  font-family: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.6;
}

/* ═══════════════════════════════════════════
   NAVIGATION
   ═══════════════════════════════════════════ */
.vai-nav {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  z-index: 900;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2.5rem;
  height: 70px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
}

.vai-nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.vai-nav-brand svg {
  color: var(--primary);
}

.vai-nav-brand-text {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.vai-nav-brand-text span {
  color: var(--primary);
}

.vai-nav-links {
  display: flex;
  align-items: center;
  gap: 0;
}

.vai-nav-link {
  padding: 8px 16px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s;
  position: relative;
}

.vai-nav-link:hover {
  color: var(--primary);
}

.vai-nav-link.active {
  color: var(--primary);
}

.vai-nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 16px;
  right: 16px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

.vai-nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.vai-btn-outline {
  padding: 9px 22px;
  border-radius: 8px;
  border: 2px solid var(--border);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-secondary);
  text-decoration: none;
  transition: all 0.2s;
  background: transparent;
}

.vai-btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.vai-btn-primary {
  padding: 10px 24px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--primary), #818cf8);
  border: none;
  font-size: 0.85rem;
  font-weight: 800;
  color: #fff;
  text-decoration: none;
  transition: all 0.2s;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(102, 126, 234, 0.3);
}

.vai-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

/* ═══════════════════════════════════════════
   HERO SECTION
   ═══════════════════════════════════════════ */
.vai-hero {
  padding: 110px 2rem 70px;
  text-align: center;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.vai-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 40% at 50% 0%, rgba(255, 255, 255, 0.1), transparent);
  pointer-events: none;
}

.vai-hero-label {
  display: inline-block;
  background: rgba(255, 255, 255, 0.2);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 1.5rem;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.vai-hero h1 {
  font-size: clamp(2.4rem, 6vw, 4rem);
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 1.1;
  color: #fff;
  margin-bottom: 1rem;
  position: relative;
  z-index: 1;
}

.vai-hero h1 span {
  background: linear-gradient(135deg, #fbbf24, #f59e0b);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.vai-hero-sub {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.9);
  max-width: 580px;
  margin: 0 auto 2rem;
  line-height: 1.75;
  position: relative;
  z-index: 1;
}

.vai-toggle-row {
  display: flex;
  justify-content: center;
  margin-top: 2rem;
}

.vai-toggle-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 10px 24px;
  border-radius: 100px;
  letter-spacing: 0.03em;
}

.vai-toggle-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.5;
    transform: scale(0.8);
  }
}

/* ═══════════════════════════════════════════
   PRICING GRID
   ═══════════════════════════════════════════ */
.vai-pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 2rem;
  max-width: 1000px;
  margin: -40px auto 5rem;
  padding: 0 2rem;
  position: relative;
  z-index: 10;
}

.vai-card {
  background: var(--bg-card);
  border: 2px solid var(--border);
  border-radius: 24px;
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

.vai-card:hover {
  border-color: var(--primary);
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
}

.vai-card.featured {
  border-color: var(--primary);
  box-shadow: 0 20px 40px rgba(102, 126, 234, 0.15);
}

.vai-card.featured:hover {
  box-shadow: 0 30px 60px rgba(102, 126, 234, 0.25);
}

.vai-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  border-radius: 24px 24px 0 0;
}

.vai-card.standard::before {
  background: linear-gradient(90deg, #22c55e, #16a34a);
}

.vai-card.featured::before {
  background: linear-gradient(90deg, #667eea, #818cf8, #a5b4fc);
}

/* Badge */
.vai-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 1.5rem;
  width: fit-content;
}

.vai-badge.free {
  background: rgba(34, 197, 94, 0.1);
  color: #22c55e;
  border: 1px solid rgba(34, 197, 94, 0.2);
}

.vai-badge.pro {
  background: rgba(102, 126, 234, 0.12);
  color: #667eea;
  border: 1px solid rgba(102, 126, 234, 0.25);
}

/* Ribbon */
.vai-ribbon {
  position: absolute;
  top: 20px;
  right: 20px;
  background: rgba(102, 126, 234, 0.15);
  border: 1px solid rgba(102, 126, 234, 0.3);
  color: #667eea;
  font-size: 0.6rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 5px 14px;
  border-radius: 100px;
}

/* Tier name */
.vai-tier-name {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

/* Description */
.vai-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 1.5rem;
  min-height: 44px;
}

/* Price */
.vai-price {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin: 1rem 0 0.8rem;
}

.vai-price-currency {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-muted);
  align-self: flex-start;
  margin-top: 8px;
}

.vai-price-amount {
  font-size: 3.6rem;
  font-weight: 900;
  letter-spacing: -0.05em;
  color: var(--text-primary);
  line-height: 1;
}

.vai-price-period {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 500;
  align-self: flex-end;
  padding-bottom: 8px;
}

/* Divider */
.vai-divider {
  height: 1px;
  background: var(--border);
  margin-bottom: 1.5rem;
}

/* Features */
.vai-features {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 2rem;
  flex: 1;
}

.vai-feature {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.vai-feature strong {
  color: var(--text-primary);
  font-weight: 700;
}

.vai-feature.dim {
  color: var(--border-bright);
  opacity: 0.6;
}

.vai-feature-check {
  width: 20px;
  height: 20px;
  min-width: 20px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}

.vai-feature-check.on {
  background: rgba(34, 197, 94, 0.15);
  color: #22c55e;
}

.vai-feature-check.off {
  background: rgba(148, 163, 184, 0.1);
  color: var(--border-bright);
}

/* CTA Buttons */
.vai-cta {
  display: block;
  width: 100%;
  padding: 14px 20px;
  border-radius: 10px;
  text-align: center;
  font-size: 0.9rem;
  font-weight: 700;
  text-decoration: none;
  border: none;
  cursor: pointer;
  font-family: 'Outfit', sans-serif;
  transition: all 0.2s;
}

.vai-cta.primary {
  background: linear-gradient(135deg, #667eea, #818cf8);
  color: #fff;
  box-shadow: 0 4px 18px rgba(102, 126, 234, 0.3);
}

.vai-cta.primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(102, 126, 234, 0.45);
}

.vai-cta.ghost {
  background: transparent;
  color: var(--text-muted);
  border: 2px solid var(--border);
}

.vai-cta.ghost:hover {
  background: rgba(102, 126, 234, 0.05);
  color: var(--text-primary);
  border-color: var(--primary);
}

.vai-cta-note {
  text-align: center;
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 10px;
  font-weight: 500;
}

/* ═══════════════════════════════════════════
   TRUST BAND
   ═══════════════════════════════════════════ */
.vai-trust-band {
  max-width: 1000px;
  margin: 0 auto 5rem;
  padding: 0 2rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.vai-trust-item {
  background: var(--bg-card);
  border: 2px solid var(--border);
  border-radius: 14px;
  padding: 1.75rem;
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  transition: all 0.2s;
}

.vai-trust-item:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
}

.vai-trust-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(102, 126, 234, 0.1);
  border: 1px solid rgba(102, 126, 234, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--primary);
}

.vai-trust-title {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.vai-trust-desc {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ═══════════════════════════════════════════
   FAQ SECTION
   ═══════════════════════════════════════════ */
.vai-faq-section {
  max-width: 760px;
  margin: 0 auto 5rem;
  padding: 0 2rem;
}

.vai-faq-heading {
  font-size: 1.8rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 2rem;
  text-align: center;
}

.vai-faq-item {
  background: var(--bg-card);
  border: 2px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem 1.5rem;
  margin-bottom: 1rem;
  cursor: pointer;
  transition: border-color 0.2s;
}

.vai-faq-item:hover {
  border-color: var(--primary);
}

.vai-faq-q {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.vai-faq-a {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-top: 0.75rem;
  display: none;
}

.vai-faq-item.open .vai-faq-a {
  display: block;
}

.vai-faq-chevron {
  flex-shrink: 0;
  transition: transform 0.2s;
  color: var(--text-muted);
}

.vai-faq-item.open .vai-faq-chevron {
  transform: rotate(180deg);
}

/* ═══════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════ */
.vai-footer {
  border-top: 1px solid var(--border);
  padding: 3rem 2rem;
  text-align: center;
  background: var(--bg-secondary);
}

.vai-footer p {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.8;
}

.vai-footer a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s;
}

.vai-footer a:hover {
  color: var(--primary);
}

/* ═══════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════ */
@media (max-width: 768px) {
  .vai-nav {
    padding: 0 1.5rem;
    height: 60px;
  }

  .vai-nav-links {
    display: none;
  }

  .vai-hero {
    padding: 80px 1.5rem 50px;
  }

  .vai-pricing-grid {
    grid-template-columns: 1fr;
    margin-top: -30px;
    gap: 1.5rem;
  }

  .vai-trust-band {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .vai-btn-outline {
    display: none;
  }

  .vai-card {
    padding: 2rem 1.5rem;
  }

  .vai-price-amount {
    font-size: 3rem;
  }
}